Sergio's answer makes sense. But with the number of compassionate vets that provide services for spay neuter, and chipping, I can't help but think you are on the right track. If you take the dog in and explain your situation they might find a good solution for you. They will also be able to determine your dogs health and potential for recovery. The people there care deeply about animals. Take your fog and make your plea. The site you're getting this information from is an individual experienced with the pound. I am not pound staff only way to know is to take your dog in and tell your story.
It is not a service they typically offer. They rarely do that because euthanizing a dog is the last thing they want to do. Ask to speak with the supervisor. You should take documentation to prove your case.
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